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U11C2 Chrysler Code - Lost Tranmission Message

Quick Answer

The U11C2 Chrysler diagnostic trouble code indicates that the vehicle has lost communication with the transmission control module (TCM). Common causes include Faulty TCM: The transmission control module may be malfunctioning, causing a loss of communication, Wiring issues: Damaged or corroded wiring can disrupt the communication between the TCM and other components, Transmission sensor failure: A faulty transmission sensor can prevent the TCM from receiving accurate data. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U11C2 Chrysler indicates Lost Tranmission Message.
Common causes
Common causes include Faulty TCM: The transmission control module may be malfunctioning, causing a loss of communication, Wiring issues: Damaged or corroded wiring can disrupt the communication between the TCM and other components, Transmission sensor failure: A faulty transmission sensor can prevent the TCM from receiving accurate data.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code U11C2 Chrysler Description

The U11C2 Chrysler diagnostic trouble code indicates that the vehicle has lost communication with the transmission control module (TCM). The TCM plays a crucial role in controlling the transmission's operation, including shifting gears, torque converter lockup, and other functions. When the TCM loses communication, it can lead to issues with the transmission's performance, potentially causing erratic shifting, slipping gears, and even a complete loss of driveability.

OBDII Code U11C2 Chrysler - Lost Tranmission Message
U11C2 Chrysler Code - Lost Tranmission Message

Common Causes of U11C2 Chrysler

  1. Faulty TCM: The transmission control module may be malfunctioning, causing a loss of communication.
  2. Wiring issues: Damaged or corroded wiring can disrupt the communication between the TCM and other components.
  3. Transmission sensor failure: A faulty transmission sensor can prevent the TCM from receiving accurate data.
  4. Software glitch: An issue with the TCM's software or programming can lead to communication errors.
  5. Electrical problems: Issues with the vehicle's electrical system can interfere with the TCM's operation.

Symptoms of U11C2 Chrysler

  1. Erratic shifting: The vehicle may experience abrupt or delayed shifts between gears.
  2. Slipping gears: The transmission may slip, causing a lack of power or acceleration.
  3. Harsh shifting: The transmission may shift forcefully, jolting the vehicle.
  4. Transmission warning light: The check engine light or transmission warning light may illuminate on the dashboard.
  5. Loss of power: The vehicle may struggle to accelerate or maintain speed.

How to Fix U11C2 Chrysler

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and pinpoint the source of the communication loss.
  2. Inspect wiring: Check the transmission wiring harness for any damage, corrosion, or loose connections.
  3. Test transmission sensors: Verify the functionality of the transmission sensors to ensure they are sending accurate data to the TCM.
  4. Replace TCM: If the transmission control module is faulty, it may need to be replaced with a new unit.
  5. Clear codes and test drive: After the repair, clear the trouble codes, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix U11C2 Chrysler

The cost of repairing a lost transmission message (U11C2) can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a faulty TCM can range from $500 to $1000, including parts and labor. However, if the issue is related to wiring or sensor problems, the cost may be lower. It's essential to consult with a qualified mechanic or dealership to get an accurate estimate for your vehicle's repair. Keep in mind that labor rates can vary based on location and the type of repair facility, so it's advisable to shop around for the best price.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U11C2 Chrysler Code

1. What are the common symptoms of OBDII code U11C2 Chrysler (Lost Transmission Message)?

- Common symptoms include the transmission not shifting properly, hesitation during acceleration, and the transmission going into limp mode.

2. What can cause the OBDII code U11C2 Chrysler to trigger?

- The code U11C2 is typically triggered by communication issues between the transmission control module (TCM) and other modules in the vehicle.

3. How can I diagnose the OBDII code U11C2 Chrysler?

- Diagnosis usually involves checking for loose or corroded wiring connections between the TCM and other modules, as well as using a diagnostic scanner to retrieve additional fault codes.

4. What are some possible repair tips for resolving the OBDII code U11C2 Chrysler?

- Repair tips may include inspecting and repairing any damaged wiring, ensuring all connections are secure, and reprogramming the TCM if necessary.

5. Can I continue driving my vehicle with the OBDII code U11C2 Chrysler present?

- It is not recommended to continue driving with this code present, as it can lead to further transmission issues and potential safety hazards.

6. How much does it typically cost to repair the OBDII code U11C2 Chrysler?

- The cost of repair can vary depending on the underlying issue, but it may range from a simple wiring repair to a TCM replacement, costing anywhere from $100 to $1000 or more.

7. Is the OBDII code U11C2 Chrysler a common issue in Chrysler vehicles?

- While not extremely common, the U11C2 code can occur in Chrysler vehicles, especially in models with electronic transmission control systems.

8. Can I reset the OBDII code U11C2 Chrysler on my own?

- Yes, you can attempt to reset the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How urgent is it to address the OBDII code U11C2 Chrysler once it appears?

- It is recommended to address the code as soon as possible to prevent further damage to the transmission and ensure the safe operation of the vehicle.

10. Are there any recalls or technical service bulletins related to the OBDII code U11C2 Chrysler?

- It is advisable to check with Chrysler dealerships or online resources for any related recalls or technical service bulletins that may provide additional information or solutions for this code.

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